Deletes Closeable.kt, it was unused
Deletes Closeable.kt, it was unused

PiperOrigin-RevId: 341739134

PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs